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90 lines
2.5 KiB
90 lines
2.5 KiB
// Copyright 2017 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package kv_test
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import (
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"context"
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. "github.com/pingcap/check"
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"github.com/pingcap/errors"
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"github.com/pingcap/parser/terror"
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"github.com/pingcap/tidb/kv"
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)
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type testFaultInjectionSuite struct{}
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var _ = Suite(testFaultInjectionSuite{})
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func (s testFaultInjectionSuite) TestFaultInjectionBasic(c *C) {
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var cfg kv.InjectionConfig
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err1 := errors.New("foo")
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cfg.SetGetError(err1)
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cfg.SetCommitError(err1)
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storage := kv.NewInjectedStore(kv.NewMockStorage(), &cfg)
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txn, err := storage.Begin()
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c.Assert(err, IsNil)
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_, err = storage.BeginWithStartTS(0)
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c.Assert(err, IsNil)
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ver := kv.Version{Ver: 1}
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snap, err := storage.GetSnapshot(ver)
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c.Assert(err, IsNil)
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b, err := txn.Get(context.TODO(), []byte{'a'})
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c.Assert(err.Error(), Equals, err1.Error())
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c.Assert(b, IsNil)
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b, err = snap.Get(context.TODO(), []byte{'a'})
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c.Assert(err.Error(), Equals, err1.Error())
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c.Assert(b, IsNil)
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bs, err := snap.BatchGet(context.Background(), nil)
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c.Assert(err.Error(), Equals, err1.Error())
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c.Assert(bs, IsNil)
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bs, err = txn.BatchGet(context.Background(), nil)
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c.Assert(err.Error(), Equals, err1.Error())
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c.Assert(bs, IsNil)
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err = txn.Commit(context.Background())
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c.Assert(err.Error(), Equals, err1.Error())
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cfg.SetGetError(nil)
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cfg.SetCommitError(nil)
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storage = kv.NewInjectedStore(kv.NewMockStorage(), &cfg)
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txn, err = storage.Begin()
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c.Assert(err, IsNil)
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snap, err = storage.GetSnapshot(ver)
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c.Assert(err, IsNil)
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b, err = txn.Get(context.TODO(), []byte{'a'})
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c.Assert(err, IsNil)
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c.Assert(b, IsNil)
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bs, err = txn.BatchGet(context.Background(), nil)
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c.Assert(err, IsNil)
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c.Assert(bs, IsNil)
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b, err = snap.Get(context.TODO(), []byte{'a'})
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c.Assert(terror.ErrorEqual(kv.ErrNotExist, err), IsTrue)
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c.Assert(b, IsNil)
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bs, err = snap.BatchGet(context.Background(), []kv.Key{[]byte("a")})
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c.Assert(err, IsNil)
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c.Assert(len(bs), Equals, 0)
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err = txn.Commit(context.Background())
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c.Assert(err, NotNil)
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c.Assert(terror.ErrorEqual(err, kv.ErrTxnRetryable), IsTrue)
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}
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